Wednesday
April 16, 2014

Homework Help: Chem titration ph

Posted by Andy on Thursday, October 5, 2006 at 3:00pm.

What arethe pH, pOH, and concentrations of CO3 2- and HCO3 - after 1.000 mL of 0.1500 M HCl is added to 100.0 mL of 0.0100-M sodium carbonate solution? ignore the added1% volume.


CO3^-2 + H^+ ==> HCO3^-
Calculate mols carbonate to start.
Calculate mols HCl to start.
Subtract carbonate - HCl. You should get 0.85 millimols CO3^-2 left.
You will have formed 0.15 millimols HCO3^-
Divding those by 100 mL will give molarity of carbonate and bicarbonate.
Use pH = pK2 + log(base/acid) to calcualte pH and from there pOH.
Post your work if you run into trouble.


well i just had a question on how to figure out the pk2 value? thank you


pK = -log K

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chem 1A - A 15.00 g sample of an ionic compound NaA, where A- is the anion of a ...
chem - Consider the titration of 30.0 mL of 0.050 M NH3 with 0.025 M HCl. ...
AP chemistry - 1). In a titration 20 mL of 0.100 M of HCl is added to 50.0 mL ...
chemistry - Consider the titration of 88.0 mL of 0.150 M Ba(OH)2 by 0.600 M HCl...
Chemistry - Consider the titration of 41.5 mL of 0.213 M HCl with 0.123 M KOH. ...
chem - calculate the pH during the titration of 100 mL of .200 M HCl with .400 M...
CHEMISTRY (WEBWORK) - What is the pH of the solution created by combining 1.20 ...
Chemistry - Consider the titration of 50 mL of 0.250 M HCl with 0.1250 M NaOH. ...
Chem Webwork - Complete the table below: What are the pH values if you take into...
chemistry - Okay let me write it this way. I mixed 30 mL of 0.1 M Acetic Acid ...

Search
Members